Add constants for theme style

Bug: 202145221
Test: manual
Change-Id: I46fc7f8e7510f8f5c4f4ea337a87a8b2e80667d3
diff --git a/src/com/android/customization/model/ResourceConstants.java b/src/com/android/customization/model/ResourceConstants.java
index 86eb7f4..293feb8 100644
--- a/src/com/android/customization/model/ResourceConstants.java
+++ b/src/com/android/customization/model/ResourceConstants.java
@@ -58,6 +58,8 @@
      * Overlay Categories that theme picker handles.
      */
     String OVERLAY_CATEGORY_COLOR = "android.theme.customization.accent_color";
+    String OVERLAY_CATEGORY_SYSTEM_PALETTE = "android.theme.customization.system_palette";
+    String OVERLAY_CATEGORY_THEME_STYLE = "android.theme.customization.theme_style";
     String OVERLAY_CATEGORY_FONT = "android.theme.customization.font";
     String OVERLAY_CATEGORY_SHAPE = "android.theme.customization.adaptive_icon_shape";
     String OVERLAY_CATEGORY_ICON_ANDROID = "android.theme.customization.icon_pack.android";